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ACI-ASTM CD3MWCuN Steel vs. SAE-AISI S4 Steel

Both ACI-ASTM CD3MWCuN steel and SAE-AISI S4 steel are iron alloys. They have 63% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD3MWCuN steel and the bottom bar is SAE-AISI S4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 790
670 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.2
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.2
2.0
Embodied Energy, MJ/kg 58
29
Embodied Water, L/kg 180
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
24 to 77
Strength to Weight: Bending, points 24
22 to 48
Thermal Diffusivity, mm2/s 4.2
12
Thermal Shock Resistance, points 22
20 to 65

Alloy Composition

Carbon (C), % 0 to 0.030
0.5 to 0.65
Chromium (Cr), % 24 to 26
0.1 to 0.5
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 56.6 to 65.3
95.2 to 96.9
Manganese (Mn), % 0 to 1.5
0.6 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 6.5 to 8.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
1.8 to 2.3
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0.5 to 1.0
0
Vanadium (V), % 0
0.15 to 0.35